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[Hepatitis C and immunoglobulin heavy-chain gene rearrangement]

Beáta Gasztonyi1, Alajos Pár, László Kereskai

  • 1I. sz. Belgyógyászati Klinika, Pécsi Tudományegyetem, Altalános Orvostudományi Kar.

Orvosi Hetilap
|May 1, 2002
PubMed

Insights

Immunoglobulin heavy chain (IgH) gene rearrangement in Hepatitis C virus (HCV) positive patients may indicate lymphoproliferative disorders. This finding supports the link between HCV infection, B-cell proliferation, and lymphoma development.

Area of Science:

  • Hepatology and Immunology
  • Molecular Biology
  • Oncology

Context:

  • Hepatitis C virus (HCV) infection affects not only hepatocytes but also salivary glands, peripheral blood monocytes, and lymphoid cells, contributing to systemic manifestations.
  • HCV infection triggers B-cell and T-cell activation, immune response modulation, and lymphoproliferation, potentially leading to B-cell non-Hodgkin's lymphoma (NHL).
  • Immunoglobulin heavy chain (IgH) and light chain (IgL) gene rearrangements are characteristic of B-cell NHLs, appearing early in their development.

Purpose:

  • To investigate the presence and significance of IgH gene rearrangements in patients with chronic Hepatitis C virus (HCV) infection.
  • To explore the association between IgH gene rearrangements, cryoglobulinemia, and lymphoproliferative disorders in HCV-positive individuals.

Summary:

  • Immunoglobulin heavy chain (IgH) gene rearrangements were analyzed in sera from 57 chronic HCV patients and 11 HCV-positive cryoglobulinemic patients.
  • Cryoglobulinemia was present in 20% of chronic HCV patients. IgH rearrangement was detected in 10.29% of all patients, with 57.14% of those with IgH rearrangement also having cryoglobulinemia.
  • The study found that IgH gene rearrangement in HCV-positive patients can serve as an indicator of lymphoproliferative disorders, supporting the role of HCV in B-cell proliferation and subsequent lymphoma development.

Impact:

  • These findings reinforce the hypothesis linking IgH gene rearrangement in HCV-positive individuals to lymphoproliferative disorders.
  • The study highlights the potential of IgH rearrangement analysis as a diagnostic marker for HCV-associated B-cell proliferation and lymphoma risk.
  • Understanding this association may lead to improved monitoring and earlier detection of B-cell malignancies in patients with chronic HCV infection.
Abstract

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